Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Longge Electronic Technology |
| Model Number | LG-RS-01 |
| Detection Type | Rain, Snow, and Humidity |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| PCB Size | 16mm x 40mm |
| Comparator Chip | LM393 |
| Sensitivity | Adjustable via Potentiometer |
| Application | Robot Kits, Weather Stations, Arduino Projects |
| Package Includes | 1x Sensor Module, 1x Raindrop Board, Connecting Wires |
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect for my weather station project
This sensor module works exactly as described. The sensitivity adjustment is very responsive, allowing me to calibrate it for light drizzle versus heavy rain. Great value for the price.
Anonymous
Mar 27, 2026
Rating: 5/5
Reliable detection
I tested this under various conditions including simulated snow melt and high humidity. It consistently triggered the alarm circuit in my prototype. Highly recommended for hobbyists.
Anonymous
Mar 26, 2026
Rating: 5/5
Great for learning electronics
Bought this for a university project. The LM393 comparator makes it easy to understand how analog signals are converted to digital. Documentation online is plentiful too.
Anonymous
Mar 07, 2026
Rating: 4/5
Solid performance
The board feels sturdy and the gold plating on the contacts looks durable. It reacts quickly to water droplets. Just make sure to seal your connections if using outdoors long-term.
Anonymous
Mar 06, 2026
Rating: 5/5
Bulk buy success
Purchased ten of these for our community makerspace. All units arrived functional and performed consistently across different microcontroller setups. Excellent batch quality.
Anonymous
Mar 03, 2026
Rating: 4/5
Good quality, easy to integrate
Integrated this into my Arduino-based robot kit without any issues. The digital output is clean. Only giving 4 stars because the included wires were a bit short for my specific setup.
Q: Is this module compatible with Raspberry Pi?
A: Yes, this module operates at 3.3V to 5V, making it fully compatible with Raspberry Pi GPIO pins. Just ensure you connect the VCC to the 3.3V or 5V pin accordingly.
Q: How do I adjust the sensitivity?
A: There is a blue potentiometer on the back of the PCB. Turn it clockwise to increase sensitivity (detect smaller drops) and counter-clockwise to decrease it.
Q: Does it come with a waterproof casing?
A: No, the module itself is the sensing element and is designed to be exposed to the elements. You will need to provide your own housing for the electronics while leaving the sensor plate exposed.
Q: What is the maximum current draw?
A: The module typically draws less than 20mA when active. The LED indicator consumes a small portion of this, which can be reduced by desoldering the power LED if needed for low-power apps.
Q: Can this detect snow or just liquid water?
A: The sensor detects moisture on the board. It will trigger when snow lands on it and begins to melt or if the accumulation creates a conductive path between the traces.
![[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament](https://www.gosteppe.com/cache/small/product/269008/legacy-main-75745db0463ce5521fe5703d.webp)
[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament
$49.00
Sanitary Juice Beverage Dairy Mixing Tank Food Pharmaceutical Electric Heating Emulsification Reaction Dissolution Tank
$4,122.00
Zhi Paper Calligraphy Copybook: Shen Du's Red Cliff Ode, Jingzhai Zhen, and Bu Zi Qi Shuo - Small Regular Script Cards for Tracing Practice
$17.00
Maike Outdoor Waterproof Dry Bag - Crossbody Travel Backpack for Rafting Diving and Beach Activities
$19.90
Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, and Pu'erh Loose Leaf Tea in Porcelain Jars
$140.41
Transparent Retainer Storage Case – Portable Soaking and Cleaning Box for Orthodontic Appliances and Dentures
$8.42
Original Wang Xizhi Huangting Small Regular Script Calligraphy Copybook for Soft/Hard Tip Pens Tear-Off Card Precise Tracing Kaishu Huan'e Tie
$35.70
Foldable Kitchen Sink Dish Drying Rack - Silicone Roll-Up Mat and Countertop Organizer
$25.40
Rapid Folding Shopping Cart, Small Trolley for Stairs, Lightweight Portable Home Handcart, Supermarket Pushcart and Vegetable Basket
$178.39
Over-Toilet Storage Rack - No-Drill Toilet Paper Holder with Multi-Compartment Shelves for Wet Wipes and Aromatherapy
$19.71
Stainless Steel Planter Pot - Outdoor Vegetable and Flower Growing Box for Balcony, Rooftop, Courtyard, Auto-Drainage, Customizable
$42.50
Stainless Steel Over-Toilet Storage Rack, Multi-Function Floor-Mounted or Wall-Mounted Multi-Tier Organizer for Bathroom, Toilet, and Laundry
$50.00
![[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring](https://www.gosteppe.com/cache/small/product/268996/legacy-main-32173fe50b846ac0e87ae26e.webp)
[Chip 3.0 Upgraded Model] Senzhou TDS Water Quality Tester for Tap and Drinking Water Health Monitoring
$22.90
Here and Now Pocket Calligraphy Copybook: Wen Zhengming Small Regular Script for Adult Beginners
$18.00
Southern Red Agate Loose Beads for DIY Crystal Jewelry Making, Round Bead Accessories and Materials
$1.10
3-Tier, 4-Tier, 5-Tier Double-Layer Drainage Rack, Water Bucket Stand, Floor-Standing Thickened Rack
$276.32
Multi-Layer Over-Toilet Storage Rack for Bathroom, Drill-Free Floor Stand for Washing Machine and Balcony Organization
$46.96
Thickened Industrial Scouring Pad Emery Stainless Steel Abrasive Cloth Pot Scrubber Rust Removal and Polishing Wheel
$7.28
Wall-Mounted Bathroom Toilet Paper Holder and Tissue Dispenser Rack
$49.00
Arches French Watercolor Paper 300g/640g/850g, Cold/Hot Press, 100% Cotton, Deckled Edge, 2K/4K/8K
$29.60
Wen Xin Tang Yan Zhenqing Duobao Pagoda Stele Calligraphy Copybook, Tang Regular Script, Adult Beginner Calligraphy Practice Cards
$49.30
![[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask](https://www.gosteppe.com/cache/small/product/268987/legacy-main-5f71c8070119587e6427efe9.webp)
[Shenzhen Best Seller] Premium Wearable Negative Ion Air Purifier - Neck-Hanging Portable Electronic Mask
$298.00
Teruisi Electric Fruit and Vegetable Slicer, Multifunctional Chopper for Cafeterias and Hotels, Cutter for Green Onions, Chili Peppers, Radishes, and Ginger
$3,798.00
Waterproof Phone Pouch for Diving, Swimming, Rafting, and Hot Springs, Sealed Underwater Storage Bag with Waist Strap
$12.90
Premium Thick Cardstock Lin Zexu Representative Small Regular Script Infinite Life Sutra Close-Up Copying Calligraphy Copybook Regular Script for Beginners
$39.80
Zunjue Ticket-style 100% Cotton Watercolor Paper 300g Cold Press for Artists with Deckled Edges
$10.20
Kids' 3D Printing Pen – 3D Stereoscopic Drawing Toy for Girls, Perfect Birthday Gift
$104.66
Mifaner Handmade Watercolor Sketchbook – Oil Painting Series Canvas Journal, Travel-Friendly Mini Notebook for Acrylic Markers
$16.90
(Sasha Exclusive) Fat Small Card
$1,399.00
Silicone Faucet Side Drain Mat, Foldable Splash-Proof Pad for Kitchen Sink and Bathroom Washbasin
$4.93
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
